Merge "msm: mdss: skip bw vote for same bw requests" (5becdbcc) · Commits · e / devices / android_kernel_sony_msm8994

drivers/video/msm/mdss/mdss_dsi_host.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2136,7 +2136,7 @@ int mdss_dsi_cmdlist_commit(struct mdss_dsi_ctrl_pdata *ctrl, int from_mdp)

		if (ctrl->mdss_util->bus_scale_set_quota)
		ctrl->mdss_util->bus_scale_set_quota(MDSS_DSI_RT,
		SZ_1M, SZ_1M);
		0, SZ_1M);

		if (ctrl->mdss_util->iommu_ctrl) {
		rc = ctrl->mdss_util->iommu_ctrl(1);

+15 −0

Original line number	Diff line number	Diff line
		@@ -340,6 +340,7 @@ static int mdss_mdp_bus_scale_set_quota(u64 ab_quota_rt, u64 ab_quota_nrt,
		u32 nrt_axi_port_cnt = mdss_res->nrt_axi_port_cnt;
		u32 total_axi_port_cnt = mdss_res->axi_port_cnt;
		u32 rt_axi_port_cnt = total_axi_port_cnt - nrt_axi_port_cnt;
		int match_cnt = 0;

		if (!bw_table \|\| !total_axi_port_cnt \|\|
		total_axi_port_cnt > MAX_AXI_PORT_COUNT) {
		@@ -379,6 +380,20 @@ static int mdss_mdp_bus_scale_set_quota(u64 ab_quota_rt, u64 ab_quota_nrt,
		}
		}

		for (i = 0; i < total_axi_port_cnt; i++) {
		vect = &bw_table->usecase
		[mdss_res->curr_bw_uc_idx].vectors[i];
		/* avoid performing updates for small changes */
		if ((ab_quota[i] == vect->ab) &&
		(ib_quota[i] == vect->ib))
		match_cnt++;
		}

		if (match_cnt == total_axi_port_cnt) {
		pr_debug("skip BW vote\n");
		return 0;
		}

		new_uc_idx = (mdss_res->curr_bw_uc_idx %
		(bw_table->num_usecases - 1)) + 1;